NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes complaints
40 reportsClear category filter120,000 miles · Mar 7, 2017
Service Brakes
TL* THE CONTACT OWNS A 2006 CADILLAC CTS. WHILE DRIVING 45 MPH, THE BRAKE FLUID INDICATOR ILLUMINATED. THE CONTACT STATED THAT THE BRAKE FLUID HOSE BECAME RUSTED, WHICH CAUSED BRAKE FLUID TO LEAK FROM THE HOSE ONTO THE GROUND. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE …
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TL* THE CONTACT OWNS A 2006 CADILLAC CTS. WHILE DRIVING 45 MPH, THE BRAKE FLUID INDICATOR ILLUMINATED. THE CONTACT STATED THAT THE BRAKE FLUID HOSE BECAME RUSTED, WHICH CAUSED BRAKE FLUID TO LEAK FROM THE HOSE ONTO THE GROUND. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 120,000.
NHTSA ODI #10959121
121,555 miles · May 11, 2016
Service Brakes
BRAKES FAIL WHEN MAKING SHARP TURNS. I CONTACTED GM AND THEY CLAIM TO HAVE NEVER HEARD OF THE PROBLEM, I'VE HAD IT FIXED LAST YEAR AND IT IS STARTING TO HAPPEN AGAIN.
NHTSA ODI #10864451
70,000 miles · Feb 1, 2016
Service BrakesCrash
THE CAR WAS BEING PARKED AT HOSPITAL BY MY DAUGHTER WHERE SHE WORKS THE BRAKE PUSHED ALL THE WAY TO FLOOR CAR HIT BUILDING NO INJURERS 2ND TIME THIS HAS HAPPENED THE CAR HAS FRONT DAMAGE NO AIRBAG DEPLOYED THERE ARE OVER 500 TIMES THIS HAS HAPPENED LOOKING AT WEBSITES THIS NEEDS FIXED BEFORE MORE PEOPLE GET KILLED ALL THE S…
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THE CAR WAS BEING PARKED AT HOSPITAL BY MY DAUGHTER WHERE SHE WORKS THE BRAKE PUSHED ALL THE WAY TO FLOOR CAR HIT BUILDING NO INJURERS 2ND TIME THIS HAS HAPPENED THE CAR HAS FRONT DAMAGE NO AIRBAG DEPLOYED THERE ARE OVER 500 TIMES THIS HAS HAPPENED LOOKING AT WEBSITES THIS NEEDS FIXED BEFORE MORE PEOPLE GET KILLED ALL THE SAME CARS
NHTSA ODI #10823630
97,000 miles · Jul 31, 2015
Electrical SystemExterior LightingService Brakes
MY BACK CENTER BRAKE LIGHT NO LONGER WORKS AND SINCE THIS WAS POINTED OUT TO ME EARLIER THIS MONTH, I HAVE NOTICED AT LEAST FOUR OTHER CTS CARS WITH THE SAME ISSUE. THEY RANGE FROM MY YEAR ('06) TO AT LEAST 2009. AND WHEN QUOTED A PRICE ($600+!) I BALKED AT HAVING IT REPLACED. ANYONE ELSE NOTICE THIS OR HAVE THIS ISSUE?
NHTSA ODI #10745208
57,000 miles · Jul 7, 2015
Service Brakes
MAY '15 NOTICED SMALL PINK PUDDLE OF FLUID ON THE GARAGE FLOOR UNDER FRONT PASSENGER SIDE. NEW SET OF BRAKES PUT ON IN JAN '15 SO DROVE TO MY MECHANIC. WHEN I DID A HARD LEFT INTO THE PARKING SPOT AT 2-5 MPH THE CAR BRAKE PEDAL SHUTTERED, WENT TO THE FLOOR AND I WAS BARELY ABLE TO STOP. MECHANIC HAD IT FOR 3 HRS TRYING TO FIG…
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MAY '15 NOTICED SMALL PINK PUDDLE OF FLUID ON THE GARAGE FLOOR UNDER FRONT PASSENGER SIDE. NEW SET OF BRAKES PUT ON IN JAN '15 SO DROVE TO MY MECHANIC. WHEN I DID A HARD LEFT INTO THE PARKING SPOT AT 2-5 MPH THE CAR BRAKE PEDAL SHUTTERED, WENT TO THE FLOOR AND I WAS BARELY ABLE TO STOP. MECHANIC HAD IT FOR 3 HRS TRYING TO FIGURE OUT THE PROBLEM/TEST DRIVING IT MANY TIMES. THEY COULD NOT FIND ANYTHING WRONG. TWO WEEKS AGO THE "SERVICE BRAKE ASSIST" DASH MESSAGE CAME ON. I LOOKED IT UP ON THE COMPUTER. I FOUND OVER 75+ COMPLAINTS OF OTHER CADILLAC CTS OWNERS WITH THE SAME PROBLEM. ALL OF THEM HAD THEIR MECHANIC OR DEALER LOOK AT THE PROBLEM. MOST OF THOSE FAILED TO FIND ANY PROBLEM OR REPAIRED THINGS THAT DID NOT FIX THE PROBLEM. ALMOST EVERYONE SAID GM SHOULD DO SOMETHING OR AT LEAST LET OWNERS KNOW. THE SITUATION IS VERY DANGEROUS. I ALSO CAME ACROSS THE WAY TO FIX THE PROBLEM FROM A COMPLAINT FORUM POSTER : "IT IS A WIRING HARNESS PROBLEM - HAVE YOUR MECHANIC CHECK THE WIRING HARNESS FOR SOURCES OF INDUCTIVE VOLTAGE. EVENTUALLY, AN INTELLIGENT MECHANIC FABRICATED A NEW HARNESS WITH NEW TERMINAL GROUNDS FROM THE EBCM TO THE LEFT WHEEL SPEED SENSOR AND REROUTED THE HARNESS AWAY FROM ANY POSSIBLE SOURCES OF INDUCTIVE VOLTAGE. ONCE THAT WAS COMPLETE, WE HAVE NOT HAD A PROBLEM. THE MECHANIC (WORKS FOR DEALERSHIP) SAID TO US THAT ANECDOTALLY HE HAS RUN INTO THIS PROBLEM MORE THAN ONCE AND THAT THERE SEEMS TO BE A FAILURE IN THE DESIGN /WORKMANSHIP IN SOME OF THE WIRING HARNESSES CONNECTING THE EBCM TO THE SPEED SENSORS THAT CAUSES THE BRAKES TO FAIL. SEPARATELY, HE RECOMMENDED THE NEXT TIME WE BUY A CAR, WE NOT BUY A CADILLAC, BECAUSE HE FELT THAT THE FIX -- REROUTING THE HARNESS -- WAS NOT A TIME OR MONEY INTENSIVE FIX, BUT THAT GM DIDN'T SEEM INTERESTED IN LETTING CAR OWNERS KNOW THAT, DESPITE THE POTENTIAL AND OBVIOUS DANGERS. MORE BUT OUT OF ROOM.
NHTSA ODI #10732528
65,000 miles · Jun 22, 2015
Service Brakes
WHILE VERY SLOWLY TURNING INTO A PARKING SPOT MY 2006 CADILLAC CTS ACTED AS THOUGH THE ABS WAS ENGAGING AND WOULD NOT STOP. I HAD TO MANUALLY PUT THE TRANSMISSION INTO PARK TO STOP. THIS HAS NOW HAPPENED 4 TIMES UNDER SIMILAR SCENARIOS. EACH TIME THIS HAPPENS 'SERVICE BRAKE ASSIST' APPEARS ON THE DRIVER DISPLAY AND THE T/C AND A…
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WHILE VERY SLOWLY TURNING INTO A PARKING SPOT MY 2006 CADILLAC CTS ACTED AS THOUGH THE ABS WAS ENGAGING AND WOULD NOT STOP. I HAD TO MANUALLY PUT THE TRANSMISSION INTO PARK TO STOP. THIS HAS NOW HAPPENED 4 TIMES UNDER SIMILAR SCENARIOS. EACH TIME THIS HAPPENS 'SERVICE BRAKE ASSIST' APPEARS ON THE DRIVER DISPLAY AND THE T/C AND ABS LIGHTS COME ON. AFTER THE CAR HAS BEEN SHUT OFF AND THEN RESTARTED THE DISPLAY IS NORMAL, DASH LIGHT S ARE OUT AND THINGS WORK NORMAL, UNTIL IT DOES IT AGAIN. I AM IN CANADA, BUT AFTER RESEARCHING THIS PROBLEM HAVE FOUND MANY, MANY SIMILAR INCIDENCES AND FELT ADDING TO THE LIST MAY HELP TO ENGAGE GM TO ISSUE A RECALL.
NHTSA ODI #10726470
110,000 miles · Mar 13, 2015
Service Brakes
TL* THE CONTACT OWNS A 2006 CADILLAC CTS. WHILE REVERSING OUT OF A PARKING SPACE AT APPROXIMATELY 2 MPH, THE BRAKE PEDAL WAS DEPRESSED BUT THE VEHICLE DID NOT STOP. THE CONTACT OBSERVED THAT THE BRAKE HOSE HAD RUPTURED AND THE CHECK BRAKE FLUID LEVEL WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS NOT TAKEN TO A DEALER OR DIAGNOS…
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TL* THE CONTACT OWNS A 2006 CADILLAC CTS. WHILE REVERSING OUT OF A PARKING SPACE AT APPROXIMATELY 2 MPH, THE BRAKE PEDAL WAS DEPRESSED BUT THE VEHICLE DID NOT STOP. THE CONTACT OBSERVED THAT THE BRAKE HOSE HAD RUPTURED AND THE CHECK BRAKE FLUID LEVEL WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS NOT TAKEN TO A DEALER OR DIAGNOSED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND STATED THAT THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 10V105000 (SERVICE BRAKES, HYDRAULIC). THE FAILURE MILEAGE WAS 110,000.
NHTSA ODI #10694048
160,427 miles · Jan 21, 2015
Service Brakes
WHILE MAKING A RIGHT TURN PULLING INTO A PARKING SPOT THE VEHICLE FAILED TO STOP UNTIL IT HIT THE CURB. SINCE THEN IT HAS HAPPENED SEVERAL OTHER OCCASIONS VERY SPORADIC BUT THE SITUATION IS THE SAME WHILE PULLING IN TO A PARKING SPOT BRAKES FAIL TO ENGAGE AS IF I HAVE NO BRAKE ASSIST. TODAY IT HAPPEN AGAIN THIS TIME I HIT A GATE…
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WHILE MAKING A RIGHT TURN PULLING INTO A PARKING SPOT THE VEHICLE FAILED TO STOP UNTIL IT HIT THE CURB. SINCE THEN IT HAS HAPPENED SEVERAL OTHER OCCASIONS VERY SPORADIC BUT THE SITUATION IS THE SAME WHILE PULLING IN TO A PARKING SPOT BRAKES FAIL TO ENGAGE AS IF I HAVE NO BRAKE ASSIST. TODAY IT HAPPEN AGAIN THIS TIME I HIT A GATE CAUSING DAMAGE TO MY FRONT BUMPER AS WELL AS THE GATE. I UNDERSTAND THAT THIS IS A ON GOING PROBLEM AND GMC HAS FAILED TO ACKNOWLEDGE. PLEASE HELP US BEFORE IT CAUSES SOMEONE'S LIFE BECAUSE OF A FATAL ACCIDENT CAUSED BY THIS PROBLEM. *TR
NHTSA ODI #10678160
139,000 miles · Dec 22, 2014
Service Brakes
THE CAR WILL NOT STOP WHEN TURNING INTO PARKING SPACES, COMING UP TO STOP LIGHTS OR GOING DOWN HILLS. WHEN THIS STARTED HAPPENING, I THOUGHT I JUST NEEDED NEW BRAKES. I WENT TO THE MECHANIC AND REPLACED MY BRAKES AND GOT NEW TIRES, BUT THE ISSUE CONTINUED. IN ORDER TO STOP, I HAVE TO PUT THE CAR IN PARK WHILE IT IS ROLLING. I …
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THE CAR WILL NOT STOP WHEN TURNING INTO PARKING SPACES, COMING UP TO STOP LIGHTS OR GOING DOWN HILLS. WHEN THIS STARTED HAPPENING, I THOUGHT I JUST NEEDED NEW BRAKES. I WENT TO THE MECHANIC AND REPLACED MY BRAKES AND GOT NEW TIRES, BUT THE ISSUE CONTINUED. IN ORDER TO STOP, I HAVE TO PUT THE CAR IN PARK WHILE IT IS ROLLING. I PUMP THE BRAKES, BUT THAT DOES NOT HELP. I HAVE ALMOST REAR-ENDED VEHICLES WHILE COMING TO STOP LIGHTS. I HAVE ALMOST RAN INTO LIGHT POLES WHILE PARKING MY CAR. I HAVE ROLLED OUT INTO THE STREET ON NUMEROUS OCCASIONS BECAUSE THE VEHICLE WILL NOT STOP. ALL OF THESE EXAMPLES HAPPEN SPORADICALLY BUT OFTEN. MY TRACTION LIGHT AND ABS LIGHT COME ON AND I RECEIVE A WARNING ON MY DASH STATING "SERVICE BRAKE ASSIST". I HAVE BEEN VERY LUCKY SO FAR THAT I HAVE NOT BEEN IN OR CAUSED AN ACCIDENT, BUT I AM EXTREMELY FEARFUL THAT EVENTUALLY THIS WILL HAPPEN. *TR
NHTSA ODI #10667746
55,000 miles · Nov 6, 2014
Service BrakesVehicle Speed ControlWheels
IT HAPPENED TO ME SEVERAL TIMES WHEN TURNING INTO PARKING SPACE OR PULLING OUT OF PARKING SPACE MY 2006 CADILLAC CTS 3.5 DID NOT STOP WHILE BRAKING THE CAR IN EITHER DIRECTION. DURING THAT I FELT A SHUDDER SOUND COMING OUT OF FRONT WHEELS AND BRAKE PEDAL TRAVELED ALL THE WAY TO FLOOR. AT THE SAME TIME A MESSAGE ?SERVICE BRAKES …
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IT HAPPENED TO ME SEVERAL TIMES WHEN TURNING INTO PARKING SPACE OR PULLING OUT OF PARKING SPACE MY 2006 CADILLAC CTS 3.5 DID NOT STOP WHILE BRAKING THE CAR IN EITHER DIRECTION. DURING THAT I FELT A SHUDDER SOUND COMING OUT OF FRONT WHEELS AND BRAKE PEDAL TRAVELED ALL THE WAY TO FLOOR. AT THE SAME TIME A MESSAGE ?SERVICE BRAKES ASSIST? APPEARED ON THE VEHICLE INFORMATION DISPLAY WINDOW AND THE ABS AND TRACTION CONTROL WARNING LIGHTS WERE TURNED ON IN THE DASH BOARD. I TOOK MY CAR TO MORE CADILLAC LOCAL DEALER AT CHANTILLY, VA. AND GET IT CHECKED IN REFERENCE TO RECALL # 09149, BUT HE TOLD ME THAT IS NOT THE ISSUE BECAUSE THE FRONT BRAKE HOSE FITTING ARE NOT CORRODED AND HE COULD NOT REPLICATE THE ISSUE. I CONTACTED GM CUSTOMER SERVICE ON 11/06/2014 AND EXPLAINED THE SITUATION OF THE ISSUE. THEY ASSIGNED ME A REFERENCE # [XXX] AND WE HAD A CONFERENCE CALL WITH THE MOORE CADILLAC SERVICE ADVISOR. IT SEEMS LIKE THE GM AND MOORE DEALER ADVISOR ARE NOT ADMITTING THAT IS A MANUFACTURER ISSUE, BUT I HAVE READ SEVERAL SIMILAR COMPLAINTS ON THE WWW.SAFECAR.GOV SITE AND FEE LIKE THAT IT IS A GM MANUFACTURER ISSUE AND COULD CAUSE A FATAL ACCIDENT. CURRENTLY, MILEAGE ON THE CAR IS ONLY 59,200 AND I NOTICED THIS ISSUE AT MILEAGE 55,000. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
NHTSA ODI #10653146
Official recalls
6Sep 9, 2014
General Motors LLC (GM) is recalling certain model year 2004-2007 Cadillac CTS-V vehicles manufactured October 6, 2003, to March 15, 2007, and 2006-2007 Cadillac STS-V vehicles manufactured June 23, 2005, to March 15, 2007. In the affected vehicles, the electrical terminals of the fuel pump module may overheat resulting in the melting of the flange material.
Consequence & remedy
Consequence: If the flange melts, a hole may be created allowing the fuel pump to leak fuel, causing the vehicle to stall, increasing the risk of a vehicle crash. Additionally, leaking fuel in the presence of an ignition source increases the risk of a fire.
Remedy: GM will notify owners, and dealers will replace the fuel module and fuel tank jumper harness, free of charge. GM sent out interim notices in late October. The recall began on March 12, 2015. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is 14405.
Jul 2, 2014
This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. General Motors LLC (GM) notified the agency on July 2, 2014 that they are recalling 554,328 model year 2003-2014 Cadillac CTS vehicles manufactured August 16, 2001, to April 28, 2014, and 2004-2006 Cadillac SRX vehicles manufactured March 20, 2003, to August 11, 2006. In these models, the weight on the key ring and/or road conditions or some other jarring event may cause the ignition switch to move out of the run position, turning off the engine.
Consequence & remedy
Consequence: If the key is not in the run position, the air bags may not deploy if the vehicle is involved in a crash, increasing the risk of injury.
Remedy: GM will notify owners, and dealers will install two key rings and an insert in the key slot or a cover over the key head on all ignition keys, free of charge. The recall began on September 15, 2014. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is 14172.
Dec 17, 2010
GENERAL MOTORS IS RECALLING CERTAIN MODEL YEAR 2005-2007 CADILLAC CTS VEHICLES. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH REPEATED FLEXING OF THE PASSENGER SENSING SYSTEM MAT IN THE FRONT PASSENGER SEAT MAY CAUSE THE MAT TO KINK, BEND, OR FOLD. THIS FLEXING CAN BREAK THE CONNECTIONS IN THE MAT. IF THIS OCCURS, THE SENSOR MAY NOT DETECT THE PRESENCE OF A FRONT SEAT PASSENGER AND WILL DISABLE THE AIR BAG.
Consequence & remedy
Consequence: NON-DEPLOYMENT OF THE FRONT PASSENGER AIR BAG IN THE EVENT OF A CRASH NECESSITATING THAT AIR BAG'S DEPLOYMENT MAY REDUCE PROTECTION OF THE PASSENGER AND INCREASE THE RISK OR SEVERITY OF INJURY TO THEM.
Remedy: DEALERS WILL REPLACE THE PASSENGER SENSING SYSTEM FREE OF CHARGE. THE SAFETY RECALL IS EXPECTED TO BEGIN ON OR ABOUT MARCH 15, 2011. OWNERS MAY CONTACT CADILLAC AT 1-866-982-2339, CHEVROLET AT 1-800-630-2438, GMC AT 1-866-996-9463 AND AT THE OWNER CENTER AT WWW.GMOWNERCENTER.COM.
Mar 17, 2010
GENERAL MOTORS HAS NOTIFIED NHTSA OF A DEFECT IN CERTAIN MODEL YEAR 2003-2007 CADILLAC CTS VEHICLES CURRENTLY REGISTERED IN OR ORIGINALLY SOLD IN CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WASHINGTON D.C., WEST VIRGINIA AND WISCONSIN. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH THE FRONT BRAKE HOSE FITTING AT THE CALIPER MAY CORRODE DUE TO SNOW OR WATER, CONTAINING ROAD SALT OR OTHER CONTAMINANTS, ENTERING AND BEING RETAINED IN THE ROUTING SLEEVE. IF THE FITTING CORRODES SIGNIFICANTLY, THE BRAKE HOSE-TUBE INTERFACE MAY DEVELOP A LEAK.
Consequence & remedy
Consequence: THE BRAKE HOSE-TUBE INTERFACE MAY RUPTURE SUDDENLY WITHOUT PRIOR WARNING AND INCREASE VEHICLE STOPPING DISTANCE MAY OCCUR INCREASING THE RISK OF A CRASH.
Remedy: DEALERS ARE TO REPLACE BOTH FRONT BRAKE HOSE ASSEMBLIES FREE OF CHARGE. THE SAFETY RECALL IS EXPECTED TO BEGIN DURING MAY 2010. OWNERS MAY CONTACT CADILLAC AT 1-866-982-2339 OR AT THE OWNER CENTER AT WWW.GMOWNERCENTER.COM.
Dec 20, 2007
ON CERTAIN PASSENGER VEHICLES, THE REAR AXLE PINION SEAL DOES NOT MEET ALL OF THE SPECIFICATIONS AND MAY EXPERIENCE A FLUID LEAK.
Consequence & remedy
Consequence: A REAR DIFFERENTIAL FAILURE MAY CAUSE LOSS OF MOTIVE POWER AND POSSIBLY LOSS OF CONTROL INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REPLACE THE PINION SEAL FREE OF CHARGE. THE RECALL BEGAN ON FEBRUARY 1, 2008. OWNERS MAY CONTACT CADILLAC AT 1-800-458-8006 OR HTTP://WWW.CADILLAC.COM; PONTIAC AT 1-800-620-7668 OR HTTP://WWW.PONTIAC.COM; AND SATURN AT 1-800-972-8876 OR HTTP://WWW.SATURN.COM.
Jan 25, 2006
CERTAIN VEHICLES EQUIPPED WITH V6 ENGINES MAY HAVE A CONDITION WHERE FUEL IS NO LONGER SUPPLIED TO THE ENGINE. THIS CONDITION OCCURS WITHOUT THE ILLUMINATION OF THE FUEL LEVEL LOW INDICATOR LIGHT OR THE WARNING CHIME.
Consequence & remedy
Consequence: IF THE ENGINE STOPS RUNNING, THE OPERATOR WILL NOT BE ABLE TO RESTART THE VEHICLE WHICH COULD INCREASE THE RISK OF A CRASH.
Remedy: DEALERS WILL REPROGRAM THE ELECTRONIC CONTROL MODULE (ECM) WITH NEW SOFTWARE FREE OF CHARGE. OWNERS WERE NOTIFIED IN DECEMBER 2005 AND ASKED TO MAINTAIN AT LEAST 1/4 OF A TANK FUEL LEVEL TO AVOID THIS CONDITION UNTIL THE PARTS ARE AVAILABLE. THE PARTS ARE NOW AVAILABLE, OWNER RENOTIFICATION BEGAN ON MARCH 23, 2006. OWNERS MAY CONTACT CADILLAC AT 1-866-982-2339.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
3EQ11001 · Iee Passenger Sensing System Mats
Opened Feb 7, 2011 · Closed Jul 19, 2011
Status: closed (inferred from source dates) · Air Bags:frontal:sensor/control MODULE-INACTIVE
On December 17, 2010, General Motors (GM) notified the NHTSA that it had decided certain 2005 - 2007 model year Cadillac CTS vehicles contain a safety related defect.GM stated that certain CTS vehicles contain a passenger sensing system mat, manufactured by IEE, in the front passenger seat that may flex causing the mat to kink, bend or fold.If this flexing causes the connections in the mat to break, the passenger airbag could become disabled.Non-deployment of the front passenger air bag in the event of a crash necessitating that air bag's deployment may reduce protection of the passenger and increase the risk or severity of injury to them.This issue was assigned recall number 10V-644.On February 8, 2011, RMD mailed an information request (IR) letter to IEE requesting a list of purchasers for any company that was sold the same or similar defective mats.RMD also requested IEE supply the year, make and models of compatible vehicles for each of the mats it listed in its response.IEE responded on February 15, 2011, reporting that the mats recalled in GM recall 10V-644 were developed specifically for the 2005-2007 Cadillac CTS.IEE noted that, ...the CTS Sensor Mat is not the same or similar to any other sensor mat manufactured by IEE.IEE further explained that the sensor mats were sold to Lear Corp. (Lear), for incorporation into seat assemblies, with the seat assemblies finally being sold to GM.Also, some sensor mats were sold to Integrated Manufacturing and Assembly, LLC (IMA) who would then re-sell the mats to GM to use as service parts.Ultimately, these parts were all sold to GM for use in the 2005-2007 Cadillac CTS vehicles.According to its 10V-644 Defect Report, GM reported that some vehicles outside the recall population have ...significantly lower incident rates and will be provided a special coverage.This special coverage includes a free repair should the same issue occur to non-recalled 2005-2007 Cadillac CTS vehicles up to 10 years or 120,000 miles.On April 7, 2011, RMD mailed an IR letter to GM to gather more information on GM's decision to only recall a portion of the vehicles that contained the subject IEE mats.RMD also requested that GM provide updated to current warranty claims, field reports, and other field information for CTS vehicles both recalled and those under the special coverage.On May 19, 2011, GM responded with a letter and several CD attachments that were submitted to NHTSA's Office of the Chief Counsel along with a request for confidentiality.GM confirmed that the IEE mats recalled in 10V-644 were only used in the 2005-2007 Cadillac CTS.GM also explained its reasoning in only recalling a portion of the CTS vehicles containing IEE mats.Due to various production phases, error detections, and false corrections, certain vehicles were more prone to mat failures than other vehicles.GM identified 4 distinct seat assembly production periods and chose to recall CTS vehicles depending on which seat assembly each vehicle received.Examining the data submitted in regards to warranty claims, field reports, and incidents, the CTS vehicles that were included in the safety recall were responsible for about 80% of the overall claims.CTS vehicles included in the special coverage (essentially an extended warranty), those with seat assemblies from other identified production phases, were responsible for about 20% of the overall claims.As GM has provided clear data to support its recall decision and since no other manufacturer has installed these same or similar passenger sensing system mats / seat assemblies in their vehicles, this Equipment Query is satisfied.This EQ is cl
EA07017 · Rear Drivetrain Component Failure
Opened Dec 7, 2007 · Closed Jul 16, 2008
Status: closed (inferred from source dates) · Power Train:driveline:differential Unit
IN JULY OF 2007 THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED PE07-037 TO INVESTIGATE ALLEGATIONS THAT THE REAR DIFFERENTIAL MAY FAIL CAUSING A LOSS OF MOTIVE POWER, AND IN SOME INSTANCES A LOSS OF CONTROL, IN MODEL YEAR (MY) 2004 THROUGH 2006 CADILLAC CTS, CTS-V, AND STS VEHICLES.AS A RESULT OF THAT INVESTIGATION GM ISSUED RECALL 07V-589 TO CORRECT A LEAKING PINION SEAL PROBLEM.EA07-017 WAS OPENED TO INVESTIGATE COMPLAINTS OF FRACTURED REAR DIFFERENTIAL HOUSINGS OR REAR HALF SHAFTS IN HIGH PERFORMANCE CADILLAC CTS-V VEHICLES.ACCORDING TO GM, THESE FAILURES RESULTED FROM THE CUMULATIVE DAMAGE FROM MULTIPLE POWER HOP EVENTS THAT CAN OCCUR DURING VERY AGGRESSIVE DRIVING. IN FEBRUARY 2008 INVESTIGATORS FROM ODI MET WITH GM REPRESENTATIVES TO CONDUCT TESTING OF THE SUBJECT CTS-V VEHICLES.DURING THE TESTING THE SUBJECT VEHICLES WERE SUBJECTED TO CONSIDERABLE TORSIONAL FORCES FROM STANDING STARTS AND WHILE DRIVING.POWER HOP OCCURRED DURING SOME OF THE MOST AGGRESSIVE DRIVING MANEUVERS.THE TESTING DID NOT RESULT IN FAILURE OF ANY REAR DRIVETRAIN COMPONENTS.THE ENGINEERING DESIGN AND TESTING DATA SUPPLIED TO ODI BY GM AND THE RESULTS OF THE TESTING CONDUCTED BY ODI TEND TO SUPPORT GM'S POSITION THAT THE DIFFERENTIAL DESIGN IS NOT DEFECTIVE. COMPLAINTS LISTED IN THE FAILURE REPORT DO NOT INCLUDE THOSE INDICATIVE OF FAILURE OF THE REAR PINION SEAL IN CTS-V VEHICLES COVERED BY RECALL 07V-589. FURTHER INVESTIGATION IN THIS MATTER WOULD NOT BE AN EFFICIENT ALLOCATION OF AGENCY RESOURCES.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.SEE ATTACHED CLOSING REPORT FOR FURTHER DETAILS.
PE07037 · Failure Of The Rear Differential
Opened Jul 17, 2007 · Closed Dec 27, 2007
Status: closed (inferred from source dates) · Power Train:driveline:differential Unit
ODI EVALUATED TWO DIFFERENT ALLEGED DEFECTS INVOLVING REAR DRIVETRAIN COMPONENTS DURING THIS PRELIMINARY EVALUATION.GM IS CONDUCTING A RECALL TO ADDRESS ONE OF THE DEFECT CONDITIONS AND ODI HAS OPENED AN ENGINEERING ANALYSIS TO CONTINUE ITS INVESTIGATION OF THE OTHER ALLEGED DEFECT. ON DECEMBER 19, 2007, GM SUBMITTED A DEFECT INFORMATION REPORT TO NHTSA CONCERNING DEFECTIVE REAR AXLE PINION SEALS IN APPROXIMATELY 275,936 MODEL YEAR (MY) 2005-07 CADILLAC CTS, STS AND SRX VEHICLES AS WELL AS MY 2006-07 PONTIAC SOLSTICE AND MY 2007 SATURN SKY VEHICLES (RECALL 07V-589).ON STS AND SRX VEHICLES WITH ALL WHEEL DRIVE, THE FRONT AXLE PINION SEAL ALSO DOES NOT MEET ALL OF GM'S SPECIFICATIONS AND MAY EXPERIENCE A FLUID LEAK.GM INDICATED THAT THE SEAL SUPPLIER MADE AN UNAUTHORIZED CHANGE TO THE PINION SEAL MATERIAL.LEAKING PINION SEALS COULD RESULT IN LOSS OF REAR DIFFERENTIAL LUBRICATION WHICH COULD RESULT IN REAR WHEEL LOCK-UP AND LOSS OF VEHICLE CONTROL. ON DECEMBER 7, 2007, ODI OPENED AN ENGINEERING ANALYSIS (EA07-017) TO INVESTIGATE COMPLAINTS OF REAR DRIVETRAIN COMPONENT FAILURE (E.G., FRACTURED REAR DIFFERENTIAL CARRIER HOUSING OR REAR AXLE HALF SHAFTS) WHILE DRIVING IN APPROXIMATELY 7,600 MY 2004 THROUGH 2006 CADILLAC CTS-V VEHICLES.THIS CONDITION MAY RESULT IN A LOSS OF MOTIVE POWER AND VEHICLE DISABLEMENT AND IS NOT ADDRESSED BY RECALL 07V-589.ODI IDENTIFIED 35 COMPLAINTS (16 TO ODI AND 19 TO GM) AND 128 WARRANTY CLAIMS POTENTIALLY RELATED TO THIS CONDITION (SEE EA07-017 OPENING RESUME).THESE COMPLAINTS ARE NOT INCLUDED IN THE FAILURE REPORT SUMMARY OF THIS CLOSING RESUME. THE COMPLAINTS AND WARRANTY FIGURES GIVEN IN THIS RESUME ARE LIMITED TO THOSE THAT (A) ARE MOST LIKELY CAUSED BY A LEAKING REAR PINION SEAL; AND (B) RESULTED IN AN ALLEGATION OF A REAR DIFFERENTIAL FAILURE WHILE DRIVING.THE DATA DO NOT INCLUDE ALL REPORTS OF SEAL LEAKAGE.
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